- Lee Ha-nui - Im Moo-sik
- ??? - Park Young-shin
- Seo Dong-gab - Kim Bong-shik
- ??? - Choi Yoon-ji
- Oh Seung-hoon - Jo Kang-moo
- Kim Yun-seul - Cotton candy girl
- ??? - 'Turtle' supermarket owner
- Heo Seon-haeng - Medical examiner
- Kim Deok-ju - Hwa-yeon's landlord
- Lee Si-young - Neighborhood single mother
- Park Jin-young - Doctor
- Yoon Hye-ree - Choi Hwa-yeon
- Oh Kyung-joo - Bang Ki-hoon
- Oh Hee-jun - Kang Yoo-min
- Ko Gun-han - Yang Yong-chul
- Lee Cheon-mu - Song Ha-young (young)
- Moon Dong-hyeok - Moon Tae-soo
- Kim Hyun - Hwa-yeon's mother
- Jeong Man-sik - Park Dae-woong
- Cheon Dong-been - Deliveryman
- Noh Ha-yeon - Lee Soo-hyun
- Lee Jong-yoon - Jang Deuk-hok
- Bae Seong-il - Detective
- Jung Chung-gu - Film developer
- Park Yu-mil - Lim Hyun-joo
- Ki Hwan - Soo-hyun's father
- Hwang In-jun - Detective
- Oh Kyu-taek - Man drinking with prosecutor
- Hong Ye-ji - Bookstore employee
- Kim Joong-hee - Nam Ki-tae
- Lee Geun-hu - Kwak Man-hyun
- Kim Gyeong-min - Professor An
- Seong No-jin - Forensics examiner
- Kim Joo-ah - Columbarium employee
- Han Dae-gwan - Victim's father
- Choi Sol-hee - Yang Ji-sook
- Na Chul - Woo Ho-sung
- Lee Ye-joo - Christmas tree girl
- ??? - Lee Cho-won
- Kim Bong-soo - Ji-sook's father
- Kim Bong-hee - Ji-sook's mother
- Gae-mi
??? interpreta a Song Ha-young en la serie.
??? hace el papel de Yoon Tae-goo.
??? interpreta a Kook Young-soo en la serie.
Ryeoun interpreta a Jung Woo-joo en la serie.
??? hace el papel de Baek Jun-shik.
??? hace el papel de Nam Il-young.
Kim Won-hae interpreta a Heo Gil-pyo en la serie.
Hong Woo-jin interpreta a Oh In-tak en la serie.
Jo Young-jin interpreta a Lee Jin-chul en la serie.
Lee Ha-nui hace el papel de Im Moo-sik.
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